Occurrence of the Young Thresher Shark Alopias superciliosus Lowe, 1841 (Lamniformes: Alopiidae) in the Northeastern Mediterranean Sea

Year 2020, Volume: 4 Issue: 1, 28 - 31, 29.06.2020

Deniz Ayas , Hasan Deniz Akbora , Burak Ali Çiçek

https://doi.org/10.31594/commagene.713381

Abstract

The Bigeye Thresher Shark Alopias superciliosus Lowe, 1841 is one of the largest shark species found in the Pacific, Atlantic, and Indian oceans. They also have started to be seen in the Mediterranean Sea since the 1980s. The presence of two different species of Thresher sharks in Turkish waters is known, which are A. vulpinus and A. superciliosus. Thresher sharks can easily be distinguished from other shark species with their big tails. A juvenile female specimen of A. superciliosus with a total length of 240 cm was caught incidentally in Mersin Bay in January 2020. Essential measurements of the fish were fulfilled and the specimen was deposited in the Museum of the Systematic, Faculty of Fisheries, Mersin University (catalog number: MEUFC-20-11-127). This study is the first record of A. superciliosus in Mersin Bay.

Keywords

Shark conservation, juvenile fish, first record, incidental capture, threatened species

Supporting Institution

Mersin Üniversitesi

Project Number

2017-2-AP2-2353

Thanks

This study was supported by the Research Fund of Mersin University in Turkey with Project Number: 2017-2-AP2-2353.

Kuzeydoğu Akdeniz'de Yavru Sapan Köpekbalığı’nın Alopias superciliosus Lowe, 1841 (Lamniformes: Alopiidae) Bulunuşu

Abstract

Sapan Köpekbalığı (Alopias superciliosus Lowe, 1841), Pasifik, Atlantik ve Hint Okyanusunda büyük köpek balığı türlerinden biridir. 1980’lerden itibaren Akdeniz’de de görülmeye başlamışlardır. Türk sularında A. vulpinus ve A. superciliosus türlerinin görüldüğü bilinmektedir. Sapan Köpekbalıkları, büyük kuyrukları ile diğer köpekbalıklarından kolaylıkla ayırt edilebilirler. Toplam uzunluğu 240 cm olan bir adet yavru-dişi A. superciliosus örneği Ocak 2020'de Mersin Körfezi'nde tesadüfen yakalanmıştır. Örneğin gerekli ölçümleri tamamlandıktan sonra Mersin Üniversitesi, Su Ürünleri Fakültesi, Sistematik Müzesi’nde saklanmıştır (katalog numarası: MEUFC-20-11-127). Bu çalışma Mersin Körfezi’nde A. superciliosus için ilk kayıttır.

Keywords

Köpekbalığı koruma, yavru balık, ilk kayıt, tesadüfi yakalama, tehdit altındaki türler

Project Number

2017-2-AP2-2353

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